Auxiliary lock for bolt works



Sept. 28 1926.

W. C. GCLLOWAY ET AL AUXILIARY Loox FOR BOLT woRKs Filed July 27, 1922 l MM, Gollum@ @ed @s I 1% www@ 2 Sheets-Sheet 2 W. o. GOLLOWAY ET AL AUXILIARY' Loox FCR BOLT wonxs I Flled July 2"/ 1922 Sept 28 1926.

Patented Slept. 28, 1926.

umrensrarns parametrica WILLIAM O. GVOLLOVVAY` AND EDW'ARD B. SUNDER'HAUS, lOF CANTON, OHIO, ASSIG-NORS 'IO DIEBOLD SAFE & LOCK COMPANY, Oli CANTON, OHIO, A CORPORATION 0F OHIO. l

AUXILIARY LOCK non Bon'r wenns.

Application led July 2*?, 1922. Serial No. 577,837. v

. This invention relates 'to auxiliary locks for bolt worlr and particularly to an auxiliary locking device for use in connection with `the ordinary locking mechanism of safes and vaults.

The objects of the'invention are to provide an auxiliary locking device which will automatically operateto lock the bolt worl; of the safe or vault door Ywhen the same is tampered with, either by an Oxy-acetylene or other torch flame, or explosives, preventing mani ulationfofthe bolt work and precluding tljieA opening of the door.

The above and other objects maybe attained by constructing the device as illustrated inthe s accompanying drawings, in whichy Y Figure 1is a rear elevation of a safe or Y vault door4 showing the application of the invention to the usual bolt work; l `Fig. 2, aV verticalv sectional view thereof; Fig. 3, a section on the line 23e-3, Fig. 2; Figs. 4 and 5, detail perspective views of the links ofl the fusible chain; l

Fig; 6,'. a fragmentary perspective view of a portion ofthe door andibolt work, showing the auxiliaryA locking device; and Fig. Y, detail perspective view of the Y' `sliding locking plate;

VVSimilar numerals refer to asimilar parts throughout the drawings.

The door ofa safeV or vault is indicated generally atl, which is shown as coinprisingthe plates 2, 3,y 4 and 5 which are pref erably formed of diderent `grades of. steel, 'Y certainl of the plates being drill resisting,

VWhile the other plates aretorch resisting.

The usual bolt bars 6 and* 7 are arranged in parallel Arelation upon the rearface of the door, the' usual locking bolts 9 being y slidably located through said bars and arv ranged to be movedin unisonby means of i VV,the bolt carrying bars 9, one of which is provided for .eachside ofthe door, all of the locking'bolts uponeach side ofthe door being vconnected tothe accompanying bolt' l carrying bar. Y

A lpair of alined rack bars 10 are connected to the upper and lower bolt carrying bars, each of said rack bars being engaged upon opposite sides by the pinions 11 and near its inner end by the pinion 12., A pair of short rack bars 18 is connected to each of the side bolt carrying barsand engages the adjacent pinionll.

The operating bar 14 is provided with rack portions engaging the piiiions 12 and with a rack portion 15 engaging the pinion 16 upon the 'operating spindle "17. AllV of the above construction is usual in safe and vault bolt work and'may be varied to some extent, and does not form a present invention, l

The plates 3 and 4 are provided with half round, longitudinal grooves 18 whichregisterrwith one another, forming a vvertical bore through the ycenter vof the door of slightly greater ,diameter than the weight 19, which is suspended therein upon a fragile supporting member arranged to separate part of Ythe upon the application of heat or explosion, Y

such' as the chain composed of alternate links 2() and 2l, the latter being formed of a metal which fuses at a' low temperature. An air space is formed Abetween the plates 3 plates apartin any A short shaft 22 is fjournaled through the plates 2 and 8 and provided upon itsv inner end with a fixed linger 23, the free extrem-` ity of which engages theannular groove 24 inthe weight 1 9. jA rocker arm 25 is fixed to the outer end of the shaft 22 and provided 'with a downwardly curved'v extremity 26 located throughrtlie slot 27 in theY adjacent Vbolt bar 7 and engaging an A`aperture 28 in thesliding locking plate 29, which is prois mounted for 'vertical sliding motion upon vvided with a vertical slot 30 receiving the cap screw 31 by means of which the plate ing lug 32 is provided upon the locking Y plate 29 and arranged to be Vnormally received into the notch 33 in the adjacent bolt kcarrying bar y9, vto allow manuipulationpof'y the bolt work.V l The operation of the device'is as follows;

fas "is well understood, i the boltv workis operated bythe 'rotation of the spindle 17 operating all of the rack bars and pinions to withdraw or extend all of the locking bolts 8 in the usual manner. As the bolt carrying bars are moved outward or inward to extend or withdraw the bolts, the loclr` ing lugs 32 will be received into the notch 33 of the adjacent bolt carrying bar as the lug and notch normally register.

Then an Oxy-acetylene or other torch, or an explosive is used in an attempt to open the door by an unauthorized person, one or more of the fusible links 2l will be melted or shattered, allowing the weight 1S?) to drop to the bottom of the vertical bore in which it is suspended. As the weight drops, the rocker arm 23 engaged by the annular groove 24tof the weight, will be swung downward, rocking the shaft 22' and in turn swinging the rocker arm 25 downward, said rocker arm carrying with it the locking plate 29, moving the locking lug 32 out of registration with the notch 33 in the adjacent bolt carrying bar, thus preventing inward movement of said bolt carrying bar, and, since all of the bolt carrying bars are geared together by the rack bars, and pin ions above described, any attempt to withdraw the bolts will be frustrated, all of the bolt work being locked against manipulation.

It will t-hus be seen that an auxiliary locking device is provided which will open ate automatically when an Oxy-acetylene or other torch or an explosive is used in an unauthorized attempt to open the door, posi tively locking the bolt work against withdrawal and preventing opening of the door.

1. A safe or vault door provided with aI notched bolt carrying bar, a plurality of locking bolts cariied thereby, means for moving the bolt carrying bar to extend or withdraw the bolts, a sliding locking plate provided with a lug normally registeringY with the notch in the bolt carrying bar to permit withdrawal of the bolts a weighted rocker arm and a fusible link connected thereto'for automatically sliding the locking plate to move the lug thereon out of regis tration with the notch in the bolt carrying bar when heat or an explosive is applied to the door.

2. A safe or vault door provided with a notched bolt carrying bar, a plurality of locking bolt-s carried thereby, means for moving the bolt carrying bar to extend or f withdraw the bolts.l a sliding locking plate provided with a lug normally registering with the notch in the bolt carrying bar to permit withdrawal of the bolts, a fusible chain suspended within the door, a weight supported upon the chain and a rocker a `m operatively connecting the weight to the sliding locking plate to automatically slide the locking plate to move the lug thereon out of registration with the notch in the belt carrying bar when the fusible chain is fused or shattered.

3. A safe or vault door provided with a notched bolt carrying bar, a plurality ot locking bolts carried thereby, means for moving the bolt carrying har to extend or withdraw the bolts, a sliding locking plate provided with a lug normally registering with the notch in the bolt carrying bar to permit withdrawal of the bolts, a fusible chain suspended within the door, a weight carried by the chain, a rocker shaft journaled in the door, means operatively connecting the rocker shaft to the weight, and a rocker arm carried by the shaft and operatively connected to the sliding locking plate whereby the same is automatically moved to move the locking lug thereon out of registration with the notch in the bolt carrying bar when the weight is released by the fusing or shattering of the fusible chain.

si.. A safe or vault door provided with a notched bolt carrying bar, a pluralityv of locking bolts carriedihereby, means for moving the bolt carrying bar to extend or withdrawn the bolts, a sliding locking plate provided with a lug normally registering with the notch in the bolt carrying bar to permit withdrawal of the bolts, a fusible chain suspended within the door, a grooved weight supported upon the chain, a. rocka shaft liournaled in the door, a rocker arm upon the shaft engaging the groove in theI weight, and a second rocker arm upon the shaft engaging the sliding locking plate to automatically move the same and slide the lug thereon out of registration with the notch in the bolt carrying bar when the weight is released by the fusing or shattering of the fusible chain.

A safe or vault door provided with a bolt carrying bar, locking bolts carried thereby,vmeans for moving the bolt carrying bar to extend or withdraw the bolts, a sliding locking member normally held out of engagement with the bolt carrying bar to permit withdrawal of the bolts, a 'fragile support-ing member suspended within the door, a weight supportedy thereon. and a rocker arm operatively connecting the weight to the locking member to cause the same to lie-moved into engagement with the bolt carrying bar to prevent withdrawal of the bolts when the supporting member is separated byheat or explosion.

WILLIAM O. GOLLOWAY. EDYVARD B. SUNDERHAUS. 

